A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 5835-00-491-6075
NSN 5925-00-529-0441
NSN 6240-00-299-5877
NSN 5935-01-578-7156
NSN 5935-00-285-2767
NSN 5935-00-915-1227
NSN 6320-00-270-8222
NSN 5905-01-472-0860
NSN 5945-00-003-9155
NSN 6130-00-070-6140
NSN 5960-00-283-9702
NSN 5950-01-202-1340